How to know more Ruby gems?

1. Ruby Weekly – A free, once–weekly e-mail round-up of Ruby news and articles.
https://rubyweekly.com/

2. Awesome Ruby – A collection of awesome Ruby gems, tools, frameworks and software
https://ruby.libhunt.com/

3. Awesome Ruby – markets/awesome-ruby: A collection of awesome Ruby libraries, tools, frameworks and software
https://awesome-ruby.com/
https://github.com/markets/awesome-ruby

4. RubyGems.org | your community gem host – Find, install, and publish RubyGems.
https://rubygems.org/

5. Focus on the Gemfile file in other Ruby or Rails projects

6. Social medias, conferences, etc.